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EP2782762A1 - Device for applying decorations to containers - Google Patents

Device for applying decorations to containers

Info

Publication number
EP2782762A1
EP2782762A1 EP12783111.3A EP12783111A EP2782762A1 EP 2782762 A1 EP2782762 A1 EP 2782762A1 EP 12783111 A EP12783111 A EP 12783111A EP 2782762 A1 EP2782762 A1 EP 2782762A1
Authority
EP
European Patent Office
Prior art keywords
transfer
container
base layer
layer
transfer element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12783111.3A
Other languages
German (de)
French (fr)
Other versions
EP2782762B1 (en
Inventor
Katrin Preckel
Markus Reiniger
Martin Schach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KHS GmbH
Original Assignee
KHS GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KHS GmbH filed Critical KHS GmbH
Publication of EP2782762A1 publication Critical patent/EP2782762A1/en
Application granted granted Critical
Publication of EP2782762B1 publication Critical patent/EP2782762B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B41F15/30—Supports for workpieces for articles with curved surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangementsĀ  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangementsĀ  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • the material for the base layer (base layer material) and the printing inks or printing inks taking into account the material of the container so that the adhesion between the printing and the base layer is greater than the corresponding adhesion between the base layer and the container.
  • the adhesion between the base layer and the container is chosen so that during the entire container cycle and also in a possible reuse of the container, the base layer with the print does not dissolve from the respective container, when recycling but the base layer together with the further adhering to it Overprint can be detached from the containers or from the wall. This detachment then takes place, for example, mechanically and / or with a suitable liquid medium, etc.
  • Suitable base layer material are, for example, polyolefins or other monomers, in particular also plastics or polymers which can be crosslinked by treatment with UV light or UV radiation.
  • the fluids used in the base layers, coatings, finishing, etc. are usually very thin, so have a low viscosity, so that their handling and use at very high machine speeds and transport speeds due to the nebulization and Replacement has not been used so far.
  • the object of the invention is to provide a device or system for applying, with a simplified application of the base layer forming the base layer material and thus the respective equipment to the container environmentally friendly and large area, even with high power is possible.
  • a device according to the patent claim 1 is formed.
  • the particular advantage of the invention is that the application by means of transfer element or -harid, in particular a flowing from the back of the transfer element or -pads completely solves the aforementioned problem of contamination.
  • the use of a transfer element is significantly more economical than e.g. the use of additional print heads.
  • the fluid to be applied is transferred from the coating device via circulating transfer elements (14, 21) which transect the transfer layer.
  • the respective container e.g. the bottle, for applying the base layer or the base layer material forming this layer rolled, preferably without slippage. This rolling off is usually carried out in that the transfer element and the respective container roll off each other.
  • no direct contact is made between the elements of the container and the transfer layer, but the liquid adhering in the region of greatest approximation of the container and transfer layer or transfer surface forms a fluidic bridge.
  • the transfer layer is convexly curved about an axis, for example about a pivoting or pivoting axis of the transfer element, preferably convexly in the shape of a circular cylinder.
  • the transfer element is a cylindrical or annular element forming the transfer layer on its preferably circular cylindrical outer surface.
  • ā€œcontainersā€ are in particular cans, bottles, tubes, pourches, each made of metal, glass and / or plastic, but also other packaging means which are suitable for filling liquid or viscous products those made of plastic, such as PET (polyethylene terephthalate).
  • Figure 1 is a schematic representation in section of the container wall of a container and a device applied to the outer surface of the container wall equipment consisting of a release or base layer and a print.
  • FIG. 2 is a simplified schematic and perspective view of a device or system for applying the equipment in the form of a multi-color or multi-color printing on the container.
  • FIG. 3 is a schematic representation of the device or system of Figure 2 in plan view.
  • FIG. 4 shows a schematic illustration and in plan view of a transport or conveying path of the container through the device or system of FIG. 2;
  • Fig. 5 in a simplified schematic representation of a
  • Coating device of a treatment station for applying the base layer to the container
  • 1 container in the form of bottles preferably in the form of bottles made of plastic, for example made of PET, which are provided in a the device 2 designated attachment or device on the outside of its container wall 3 with a container equipment 4 by printing.
  • the container equipment 4 consists of a base layer 5, which can also be referred to as a print carrier layer, is applied directly to the container wall 3, as well as from an applied to the base layer 5 imprint 6 in the form of a multi-color print.
  • the base layer 5 serves to improve the adhesion of the imprint 6 or the printing dots on the container wall 3 forming this imprint and generated by the printing inks or printing ink used, or to decouple the container or bottle material from the printed image, so that for the Formulation of the ink of a uniform surface quality can be assumed.
  • the base layer but serves to take over performance characteristics of the ink, for example, in terms of recyclability, for example, when recycling the respective container 1, the equipment, ie the base layer 5 together with the imprint 6 easily from the respective container to solve, for example in amaschine-Sink method in which the components of the shredded or crushed container 2 are introduced into a separating liquid and separated by these the components of the container equipment 4 of the material of the container wall and at the same time in the separating liquid or in another liquid by floating from the Shredded components of the container material can be separated.
  • the choice of material for the base layer 5 and the imprint 6 or for the printing inks or printing inks used for this imprint is taking into account the material of the container 1 u.a. is selected so that the adhesion between the imprint and the base layer 5 is greater than the adhesion between the base layer 5 and the container wall 3, and preferably that the total density of the equipment 5 is smaller than the density of the material of the container wall 3. Further the materials are chosen so that the adhesion of the imprint 6 on the base layer 5 and the adhesion of the base layer 5 on the container wall 3 are sufficiently large, so that during the entire container cycle and in particular in a possible reuse of the container 1, a separation does not take place. Furthermore, the material for the base layer 5 is also chosen so that it has sufficient flexibility to follow deformations of the respective container 1 can.
  • the imprint 6 is preferably produced by contactless printing, using a plurality of printheads, each producing a color set of the multicolored imprint 6, which work according to the ink-jet method and each having a plurality of electrically controllable nozzles for discharging the ink or Have printing ink.
  • the system 2 consists of several in a container transport direction A adjoining modules 7.1 - 7.8, all modules on each a basic unit 8, which is identical, for example, has a rotor which can be driven in rotation around a vertical module or machine axis MA and is provided at its circumference with a multiplicity of container receiving positions or treatment positions 10. The latter are the function of the respective module 7.1 - 7.8 trained on this accordingly.
  • the rotors 9 are synchronously, but driven in opposite directions such that whenever a treatment positions 10 of a rotor has reached a connection or transfer region of the adjacent rotor 9, on the adjacent rotor also a treatment position 10 for receiving or delivering a Container 1 is ready.
  • the rotors 9 close to each other in terms of transport and, according to FIG. 4, form a meander-like container transport path 11, on which the containers 1 are moved in the container transport direction A from a container task 2.1 to a container delivery 2.2.
  • the module 7.1 forms, for example, an inlet module, via which the container 1 of the container transport path 11 are supplied. In principle, however, there is the possibility that a pre-treatment of the container 1, which promotes the printing, takes place in this first module.
  • the module 7.2 the application of the respective base layer 5 on the outer surface of the container wall 3 by means of circulating together with the containers 1 transfer elements 14.
  • modules 7.3 - 7.7 are designed as pressure modules, wherein in each module or At the treatment positions 10 of their rotors 9, a color set of the multicolored imprint 6 is respectively applied to the containers 1 and to the base layer 5.
  • a part of the modules 7.3 - 7.7 or the treatment positions 10 on the local rotors 9 are also used for drying or crosslinking of the respective imprint 6-forming printing ink or printing ink.
  • the module 7.8 forms the outlet module, with which the printed containers are conveyed to the container outlet 2.1 and to a subsequent conveyor line.
  • the conveying devices for feeding and discharging the containers into and out of the system as well as the rotors 9 or their treatment positions 10 are designed so that the containers 1 are held suspended there in the region of their upper container opening. Similarly, the containers could stand on a support plate and be held by a centering tulip.
  • the printing of the container 1 in the modules designed as pressure modules or at the local treatment positions 10 is effected without contact with working according to the inkjet printheads, of which at least one is provided at each treatment position 10.
  • the peculiarity of the invention consists in the design of the module 7.2 or the treatment positions 10, at which the application of the base layer 5 by rolling or a coating module, here optionally Module 7.7, in which an analogous process is followed by a final sealing, painting or the like of the printed image.
  • a coating module is not separately described or named below, since it is basically constructed analogously or is operated analogously.
  • FIG. 4 shows, in a schematic individual representation and in plan view, an application or coating device 12 of a treatment position 10 of the module 7.2, together with a partial representation of a container 1, specifically during the application of the liquid or flowable base layer material forming the base layer 5.
  • Each treatment position 10 of the module 7.2 is formed with an independent coating device 12.
  • the coating device 12 includes, inter alia, a carrier 13 which is drivable about a parallel to the machine axis MA oriented carrier axis TA of the module 7.2 (arrow B), in synchronism with the rotational movement of the rotor 9.
  • a carrier 13 which is drivable about a parallel to the machine axis MA oriented carrier axis TA of the module 7.2 (arrow B), in synchronism with the rotational movement of the rotor 9.
  • the transfer elements 14 are each formed on their relative to the support axis TA radially outer side with a transfer layer 15 which is part of a circular cylindrical surface about an axis parallel to the axes MA, TA and PA extending axis.
  • each transfer element 14 is first moved with its transfer layer 15 at a station 16, with which the base layer 5 forming base layer material having a defined layer thickness and a defined width (in the direction of the axis PA) and with a defined length (in the direction of rotation B) is applied to the transfer layer 15.
  • the station 16 has a drum 17 which is driven circumferentially about an axis parallel to the machine axis MA and which is provided with a uniform application of the base layer material having the required layer thickness, similar to the glue drum of a labeling unit at a station (not shown).
  • the transfer elements 14 roll with their transfer layer 15 without slip or substantially slip-free on the drum 17, and indeed by appropriate control of their pivotal movement about the axes PA.
  • Each thus provided on its transfer layer 15 with the order of the base layer material transfer element 14 then passes with the rotating carrier 13 to a transfer position 18, at which the base layer material is transferred from the transfer layer 15 to the outer surface of the container wall 3 of the container 1, by rolling on.
  • the coating device 12 furthermore has a station 19 for drying or curing or crosslinking of the base layer 5, for example by heating, for example by infrared thermal radiation and / or by UV light.
  • the transfer elements 14 are each formed on their transfer layers 15 with a soft and absorbent, for example with a sponge-like material and the base layer material is applied by gently sweeping over the outer surface of the container wall 3 with the transfer layer rolling there 15 and without or substantially without the action of force of the transfer layer on the container.
  • the transfer layers 15 are each segments of an imaginary, circular axis concentrically surrounding the axis TA, so that then a controlled pivotal movement of the transfer elements 14 about the axes PA is not required.
  • FIG. 5 shows a coating device 12a, which is provided instead of the coating device 12 at each treatment position 10 of the module 7.2.
  • the coating device 12a in turn comprises a support 20, which is driven about the support axis TR in synchronism with the rotational movement of the rotor 9 in the direction of the arrow B, on which a plurality of segment-like application and transfer elements 21 are provided at equal angular intervals about the axis TR the axis TR lying radially outwardly form a transfer layer 22 for transferring the base layer material onto the container 1 which rolls on this transfer layer 21.
  • the transfer layers 22 are each arranged radially on the outside of a damping and buffer layer 23 of a soft, elastic and absorbable material which is provided on a transfer layer carrier 24, at least on its radially outer side with respect to the axis TR forms a curved about the axis TR part circle cylinder surface, so that the transfer layer 22 is curved accordingly.
  • the transfer layer carrier 24 is made of a material having sufficient strength, for example of metal (sintered metal) or ceramic (sintered ceramic) and is porous or formed with a plurality of openings or micro-openings such that within the transfer layer carrier 24, a uniform pressure distribution for the under pressure the base layer material conveyed by the transfer layer carrier 24, and in particular also a uniform distribution of the base layer material in the damping and buffer layer 23, ie this layer is impregnated as evenly as possible with the liquid base layer material.
  • the transfer element 21 is provided with a supply or buffer chamber 25, namely for receiving a buffer volume of the liquid base layer material.
  • the interior of the supply or buffer chamber 25 is limited by the transfer layer carrier 24, so that the base layer material from the supply or buffer chamber 25 can be conveyed under pressure through the transfer layer carrier 24 in the damping and buffer layer 23. Furthermore, the interior of the supply or buffer chamber 25 is connected via a line 26 to a source for supplying the base layer material under pressure and to a conduit 27 for returning excess base layer material to this source, of which only one pressure or delivery pump is shown in FIG 28 is shown. In the supply or buffer chamber 25, an electric heater 29 is further provided, with which the local base layer material is temperature-controlled at a temperature optimum for the coating, so that there are constant conditions or parameters.
  • the heater 29 can also be used with appropriate dimensioning to clean the transfer element 21 at the end of a production phase by heat or pyrolytic.
  • the electrical connections of the heater 29 and also the lines 26 and 27 are guided via at least one rotary distributor 30, so that the source of the base layer material and means for controlling and / or regulating the heater 29 for all treatment positions 10 of the module 7.2 together in the associated basic unit 8 can be accommodated.
  • the application of the base layer takes place on the coating device 12a by rolling on, ie by holding the container 1 suspended on a container carrier 31 and rotated about the vertical container axis with this container carrier at the respective transfer layer circulating in the direction of the arrow B. 22 without slip or essentially without slippage, by gently sweeping the outer surface of the container wall 3 with the transfer layer 22 and without or substantially no force of the transfer layer 22 on the container 1.
  • the coating device 12a in turn has a, but not shown station for Drying or curing of the applied base layer 5 on.
  • FIG. 6 shows, as a further embodiment, a coating device 12b, which is provided for applying the base layer 5 to the treatment positions 10 of the module 7.1 and in essential elements coincides with the coating device 12a, so that in FIGS and / or functionally correspond to the elements of Figure 5, the same reference numerals as in Figure 5 are used.
  • the coating device 12b differs from the coating device 12a, however, inter alia in that on the respective, the transfer element 21, the lower edge of the damping and buffer layer 23 and the transfer layer carrier 24 forming ring segment-shaped wall abut against a ring segment 32, which consists of a porous material, For example, consists of metal or ceramic with a plurality of micropores or micro-openings.
  • the ring segment 32 forms the inlet of a collection chamber 33 and with this a drainage unit for collecting and returning base layer material from the damping and buffer layer 23 and from the transfer layer support 24 during the operation of the system 2, but also after switching off this system.
  • the collection chamber 33 is connected via a line 34 and a feed pump 35 to a chamber 36, to which the pump 28 is also connected and which for example contains the source for the base layer material accommodated in the base unit 8 or a temporary store provided for this purpose on the rotor 5 Material is.
  • the line 34 is also guided over at least one rotary distributor.
  • the coating device 12b is further provided with a sensor 37, for example laser sensor for distance or occupancy measurement, ie, the sensor 37 provides, for example, one of the distance between the container outer surface and the transfer layer 22 and / or one of the elastic deformation of the damping and Buffer layer 23 by the container 1-dependent signal with which controls the delivery of the coating device 12a with respect to the respective container 1 to achieve the powerless or substantially powerless application of the coating material and / or the proper application of the base layer 5 is monitored.
  • a sensor 37 for example laser sensor for distance or occupancy measurement, ie, the sensor 37 provides, for example, one of the distance between the container outer surface and the transfer layer 22 and / or one of the elastic deformation of the damping and Buffer layer 23 by the container 1-dependent signal with which controls the delivery of the coating device 12a with respect to the respective container 1 to achieve the powerless or substantially powerless application of the coating material and / or the proper application of the base layer 5 is monitored.
  • FIG. 7 shows a partial illustration of the transfer element 21 of a coating device 12c, which differs from the coating device 12b substantially only in that the ring segment 32 forming the inlet into the collecting chamber 33 is provided only below the damping and buffer layer 23, via the ring segment 32 and the collection chamber 33 in this embodiment, therefore, only excess or unneeded base layer material from the damping and buffer layer 23 is dissipated, ie, the ring segment 32 and the collection chamber 33 form a drainage for the damping and buffer layer 23.
  • the base layer material provided by the transfer layer 22 is schematically indicated.
  • a closure cap or capsule for cleaning cycles is provided on or for the transfer element 21, by means of which a closed discharge space or gap can be created in front of the transfer layer 21.
  • a cleaning or solvent can be rinsed through the layers 24 and 23 via the line 27 after the attachment or closing of the transfer layer 21 and is circulated over the drainage space or gap thus formed and subsequently the collection chamber 33 by means of the pumps 28 and 35 or derived.
  • This cap or capsule is ideally designed as an automatically strigk- or movable element.
  • the use of the vacuum pump 35 is not absolutely necessary, but their use reduces the loss of solvents or cleaning agents, as targeted in the derivative, a negative pressure can be adjusted, thereby further reducing the design effort for the sealing of the cap or capsei.
  • the transfer layers 15 and 24 are respectively formed on transfer elements 14 and 21 in the form of segments.
  • the respective coating device 12, 12a, 12b and 12c has a continuous, annular transfer layer enclosing, for example, the axis TR of the respective carrier 13 or 20, in particular when the application of the base layer material takes place in such a way, the base layer completely encloses the respective container at a container outer region.
  • base layer 5 in a multi-layered manner with a plurality of individual layers, with the device 2 then producing each individual layer on different modules.
  • a seal or a coating can be applied analogously, a seal or a coating, so that the term ā€œbase layerā€ is not meant to be limiting, but must be generally understood as a "coatingā€.
  • PA Swivel axis of the transfer elements 14 MA Machine or rotor axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating Apparatus (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Ink Jet (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The invention relates to a device for applying decorations to containers by printing, having a container transport system, and having at least one processing position on the container transport system at which the containers are each provided with at least one base coat, on which the printing of the containers can then take place.

Description

Vorrichtung zum Aufbringen von Ausstattungen auf BehƤlter Ā Device for applying equipment to containers
Die Erfindung bezieht sich auf eine Vorrichtung gemƤƟ Oberbegriff Patentanspruch 1. The invention relates to a device according to the preamble of claim 1.
Verfahren und Vorrichtungen zum Erzeugen von Ausstattungen oder Ausstattungsmerkmalen durch Bedrucken von BehƤltern an ihrer BehƤlterauƟenflƤche sind bekannt. Es ist hierbei insbesondere auch bekannt, den jeweiligen vorzugsweise mehrfarbigen Aufdruck durch berĆ¼hrungsloses Drucken zu erzeugen, beispielsweise unter Verwendung von nach dem Tintenstrahl- oder InkJet-Prinzip arbeitenden digitalen Druckkƶpfen, von denen dann jeder mehrere DĆ¼sen zum Ausbringen der Druckfarbe oder Drucktinte aufweist, die elektrisch individuell ansteuerbar sind. Obwohl das direkte Bedrucken von BehƤltern u.a. hinsichtlich der FlexibilitƤt des Druckbildes und dessen Gestaltung und/oder Ƅnderung und auch hinsichtlich der Kosten erhebliche Vorteile bietet, besteht aber das Problem, dass beim Recyceln derartiger BehƤlter BehƤltermaterial zusammen mit der Druckfarbe in das Recylingmaterial gelangt, was zu einer unerwĆ¼nschten Kontaminierung des recycelten Materials fĆ¼hrt. Um dieses Problem zu lƶsen, wurde bereits vorgeschlagen (WO 2010/048119 A1), auf die AuƟenflƤche des jeweiligen BehƤlters eine zusƤtzliche Zwischen- oder Basisschicht dort aufzubringen, wo der spƤtere Aufdruck auf erfolgen soll, d.h. auf diese Basisschicht wird dann in einem oder mehreren weiteren Behandlungsschritten der beispielsweise mehrfarbige Aufdruck aufgebracht. Das Aufbringen des die Basisschicht bildenden Materials erfolgt im bekannten Fall durch AufsprĆ¼hen, was u.a. insbesondre auch bei groƟflƤchigen Aufdrucken zeitaufwƤndig ist und durch versprĆ¼htes oder verspritztes Basisschichtmaterial zu einer Belastung der Umgebung fĆ¼hrt. Die jeweilige Ausstattung besteht damit letztlich aus der Basisschicht und dem Aufdruck. Mit der Basisschicht wird nicht nur eine Verbesserung der Haftung des Aufdrucks erreicht, sondern es besteht dann auch die Mƶglichkeit, das Material fĆ¼r die Basisschicht (Basisschichtmaterial) und die Druckfarben bzw. Drucktinten unter BerĆ¼cksichtigung des Materials der BehƤlter so zu wƤhlen, dass die Haftung zwischen dem Aufdruck und der Basisschicht grĆ¶ĆŸer ist als die entsprechende Haftung zwischen der Basisschicht und dem BehƤlter. Die Haftung zwischen der Basisschicht und dem BehƤlter ist so gewƤhlt, dass wƤhrend des gesamten BehƤlterzyklus und auch bei einer eventuellen Wiederverwendung der BehƤlter sich die Basisschicht mit dem Aufdruck nicht von dem jeweiligen BehƤlter lƶst, beim Recyceln aber die Basisschicht zusammen mit dem an ihr weiterhin haftenden Aufdruck von den BehƤltern bzw. von deren Wand abgelƶst werden kann. Dieses Ablƶsen erfolgt dann z.B. mechanisch und/oder mit einem geeigneten flĆ¼ssigen Medium usw. Als Basisschichtmaterial eignen sich beispielsweise Polyolefine oder andere Monomere, insbesondere auch durch Behandlung mit UV-Licht oder UV- Strahlung vernetzbare Kunststoffe oder Polymere. Insgesamt ist bei gekannten Lƶsungen problematisch, dass die verwendeten Fluide der Basisschichten, Coatings, Finishing, etc. in der Regel sehr dĆ¼nnflĆ¼ssig sind, also eine geringe ViskositƤt aufweisen, so dass deren Handling und Verwendung bei sehr hohen Maschinengeschwindigkeiten bzw. Transportgeschwindigkeiten aufgrund der Vernebellung und Ablƶsung bisher nicht eingesetzt wird. Methods and apparatus for producing equipment or features by printing containers on their container outer surface are known. In this case, it is also known, in particular, to produce the respective preferably multi-colored imprint by non-contact printing, for example using inkjet or inkjet digital printheads, each of which then has a plurality of nozzles for discharging the printing ink or printing ink are individually controllable. Although the direct printing of containers, among other things in terms of flexibility of the printed image and its design and / or modification and also in terms of cost offers significant advantages, but there is the problem that when recycling such containers container material passes together with the ink in the Recylingmaterial what to undesirable contamination of the recycled material. In order to solve this problem, it has already been proposed (WO 2010/048119 A1) to apply to the outer surface of the respective container an additional intermediate or base layer where the subsequent printing is to take place, ie this base layer is then in one or more further treatment steps applied, for example, multi-color imprint. The application of the material forming the base layer takes place in the known case by spraying, which is time-consuming, inter alia, especially in the case of large-area imprints, and leads to contamination of the environment by sprayed or sprayed base layer material. The respective equipment ultimately consists of the base layer and the imprint. With the base layer not only an improvement of the adhesion of the print is achieved, but it is also possible to choose the material for the base layer (base layer material) and the printing inks or printing inks taking into account the material of the container so that the adhesion between the printing and the base layer is greater than the corresponding adhesion between the base layer and the container. The adhesion between the base layer and the container is chosen so that during the entire container cycle and also in a possible reuse of the container, the base layer with the print does not dissolve from the respective container, when recycling but the base layer together with the further adhering to it Overprint can be detached from the containers or from the wall. This detachment then takes place, for example, mechanically and / or with a suitable liquid medium, etc. Suitable base layer material are, for example, polyolefins or other monomers, in particular also plastics or polymers which can be crosslinked by treatment with UV light or UV radiation. Overall, it is problematic in known solutions that the fluids used in the base layers, coatings, finishing, etc. are usually very thin, so have a low viscosity, so that their handling and use at very high machine speeds and transport speeds due to the nebulization and Replacement has not been used so far.
Aufgabe der Erfindung ist es, eine Vorrichtung oder Anlage zum Aufbringen aufzuzeigen, mit der eine vereinfachtes Aufbringen des die Basisschicht bildenden Basisschichtmaterials und damit auch der jeweiligen Ausstattung auf die BehƤlter umweltschonend und groƟflƤchig, auch mit hoher Leistung mƶglich ist. Zur Lƶsung dieser Aufgabe ist eine Vorrichtung entsprechend dem Patentanspruch 1 ausgebildet. The object of the invention is to provide a device or system for applying, with a simplified application of the base layer forming the base layer material and thus the respective equipment to the container environmentally friendly and large area, even with high power is possible. To solve this problem, a device according to the patent claim 1 is formed.
Der besondere Vorteil der Erfindung besteht darin, dass die Applikation mittels Transferelement oder -pƤd, insbesondere eines von der RĆ¼ckseite angestrƶmten Transferelement oder -pads vorgenannte Verschmutzungsproblematik vollstƤndig lƶst. Dabei ist der Einsatz eines Transferelementes deutlich wirtschaftlicher als z.B. der Einsatz zusƤtzlicher Druckkƶpfe. Dabei wird das aufzutragende Fluid von der Beschichtungseinrichtung Ć¼ber umlaufende und die Transferschicht trangende Transferelemente (14, 21) Ć¼bertragen. Hierbei wird der jeweilige BehƤlter, z.B. die Flasche, zum Aufbringen der Basisschicht oder des diese Schicht bildenden Basisschichtmaterials abgewƤlzt, vorzugsweise schlupffrei. Diese AbwƤlzen kann erfolgt in der Regel dadurch, dass das Transferelement und der jeweilige BehƤlter sich aneinander abwƤlzen. Dabei erfolgt idealerweise keine unmittelbarer berĆ¼hrender Kontakt der Elemente BehƤlter und Transferschicht, sondern die im Bereich grĆ¶ĆŸter AnnƤherung von BehƤlter und Transferschicht oder TransferflƤche anhaftende FlĆ¼ssigkeit, bildet eine fluidische BrĆ¼cke. The particular advantage of the invention is that the application by means of transfer element or -pƤd, in particular a flowing from the back of the transfer element or -pads completely solves the aforementioned problem of contamination. The use of a transfer element is significantly more economical than e.g. the use of additional print heads. In this case, the fluid to be applied is transferred from the coating device via circulating transfer elements (14, 21) which transect the transfer layer. Here, the respective container, e.g. the bottle, for applying the base layer or the base layer material forming this layer rolled, preferably without slippage. This rolling off is usually carried out in that the transfer element and the respective container roll off each other. Ideally, no direct contact is made between the elements of the container and the transfer layer, but the liquid adhering in the region of greatest approximation of the container and transfer layer or transfer surface forms a fluidic bridge.
Die Transferschicht ist um eine Achse, beispielsweise um eine Dreh- oder Schwenkachse des Transferelementes konvex gekrĆ¼mmt, vorzugsweise kreiszylinderfƶrmig konvex. Dabei ist insbesondere das Transferelement ein an seiner vorzugsweise kreiszylinderfƶrmigen AuƟenflƤche die Transferschicht bildendes walzen- oder ringartiges Element. ā€žBehƤlter" sind im Sinne der Erfindung insbesondere Dosen, Flaschen, Tuben, Pourches, jeweils aus Metall, Glas und/oder Kunststoff, aber auch andere Packmittel, die zum AbfĆ¼llen von flĆ¼ssigen oder viskosen Produkten geeignet sind. BehƤlter im Sinne der Erfindung sind insbesondere solche aus Kunststoff, beispielsweise aus PET (Polyethylenterephthalat). The transfer layer is convexly curved about an axis, for example about a pivoting or pivoting axis of the transfer element, preferably convexly in the shape of a circular cylinder. In this case, in particular, the transfer element is a cylindrical or annular element forming the transfer layer on its preferably circular cylindrical outer surface. For the purposes of the invention, "containers" are in particular cans, bottles, tubes, pourches, each made of metal, glass and / or plastic, but also other packaging means which are suitable for filling liquid or viscous products those made of plastic, such as PET (polyethylene terephthalate).
Der Ausdruck ā€žim Wesentlichen" bzw. ā€žetwa" bedeutet im Sinne der Erfindung Abweichungen vom jeweils exakten Wert um +/- 10%, bevorzugt um +/- 5% und/oder Abweichungen in Form von fĆ¼r die Funktion unbedeutenden Ƅnderungen. The expression "essentially" or "approximately" in the sense of the invention means deviations from the exact value by +/- 10%, preferably by +/- 5% and / or deviations in the form of changes that are insignificant for the function.
Die Erfindung wird im Folgenden anhand der Figuren an AusfĆ¼hrungsbeispielen nƤher erlƤutert. Es zeigen: The invention will be explained in more detail below with reference to the figures of exemplary embodiments. Show it:
Fig. 1 in schematischer Darstellung und im Schnitt die BehƤlterwand eines BehƤlters sowie eine auf die AuƟenflƤche der BehƤlterwand aufgebrachte Ausstattung bestehend aus einer Trenn- oder Basisschicht und aus einem Aufdruck; Figure 1 is a schematic representation in section of the container wall of a container and a device applied to the outer surface of the container wall equipment consisting of a release or base layer and a print.
Fig. 2 in vereinfachter schematischer und perspektivischer Darstellung eine Vorrichtung bzw. Anlage zum Aufbringen der Ausstattung in Form eines Mehrfach- oder Mehrfarbendrucks auf die BehƤlter; Ā 2 is a simplified schematic and perspective view of a device or system for applying the equipment in the form of a multi-color or multi-color printing on the container.
Fig. 3 in schematischer Darstellung die Vorrichtung bzw. Anlage der Figur 2 in Draufsicht; Ā 3 is a schematic representation of the device or system of Figure 2 in plan view.
Fig. 4 in schematischer Darstellung und in Draufsicht einen Transport- oder Fƶrderweg der BehƤlter durch die Vorrichtung bzw. Anlage der Figur 2; Fig. 5 in vereinfachter schematischer Darstellung eineĀ 4 shows a schematic illustration and in plan view of a transport or conveying path of the container through the device or system of FIG. 2; Fig. 5 in a simplified schematic representation of a
Beschichtungseinrichtung einer Behandlungsstation zum Aufbringen der Basisschicht auf die BehƤlter; Coating device of a treatment station for applying the base layer to the container;
Fig. 6, 7 und 8 jeweils in vereinfachter perspektivischer Darstellung eine Beschichtungseinrichtung einer Behandlungsstation zum Aufbringen der Basisschicht auf die BehƤlter bei unterschiedlichenĀ 6, 7 and 8 respectively in a simplified perspective view of a coating device of a treatment station for applying the base layer to the container at different
AusfĆ¼hrungsformen der Erfindung. Embodiments of the invention.
In den Figuren sind 1 BehƤlter in Form von Flaschen, vorzugsweise in Form von Flaschen aus Kunststoff, beispielsweise aus PET, die in einer den Figuren mit 2 bezeichneten Anlage oder Vorrichtung an der AuƟenseite ihrer BehƤlterwand 3 mit einer BehƤlterausstattung 4 durch Bedrucken versehen werden. Die BehƤlterausstattung 4 besteht aus einer Basisschicht 5, die auch als DrucktrƤgerschicht bezeichnet werden kann, unmittelbar auf die BehƤlterwand 3 aufgebracht ist, sowie aus einem auf die Basisschicht 5 aufgebrachten Aufdruck 6 in Form eines Mehrfarbendrucks. Die Basisschicht 5 dient u.a. dazu, die Haftung des Aufdrucks 6 bzw. der diesen Aufdruck bildenden und durch die verwendeten Druckfarben oder Drucktinte erzeugten Druckpunkte auf der BehƤlterwand 3 zu verbessern bzw. das BehƤlter- oder Flaschenmaterial von dem Druckbild zu entkoppeln, so dass fĆ¼r die Formulierung der Tinte von einer einheitlichen OberflƤchenqualitƤt ausgegangen werden kann. Weiterhin dient die Basisschicht aber dazu, Leistungsmerkmale der Tinte zu Ć¼bernehmen, zum Beispiel hinsichtlich der RecyclingfƤhigkeit, um bspw. beim Recyceln des jeweiligen BehƤlters 1 die Ausstattung, d.h. die Basisschicht 5 zusammen mit dem Aufdruck 6 problemlos von dem betreffenden BehƤlter zu lƶsen, beispielsweise in einem Treib-Sink-Verfahren, bei dem die Bestandteile des geschredderten oder zerkleinerten BehƤlters 2 in eine TrennflĆ¼ssigkeit eingebracht und durch diese die Bestandteile der BehƤlterausstattung 4 von dem Material der BehƤlterwand getrennt und zugleich auch in der TrennflĆ¼ssigkeit oder in einer weiteren FlĆ¼ssigkeit durch Aufschwimmen von den geschredderten Bestandteilen des BehƤltermaterials getrennt werden kƶnnen. In the figures, 1 container in the form of bottles, preferably in the form of bottles made of plastic, for example made of PET, which are provided in a the device 2 designated attachment or device on the outside of its container wall 3 with a container equipment 4 by printing. The container equipment 4 consists of a base layer 5, which can also be referred to as a print carrier layer, is applied directly to the container wall 3, as well as from an applied to the base layer 5 imprint 6 in the form of a multi-color print. Among other things, the base layer 5 serves to improve the adhesion of the imprint 6 or the printing dots on the container wall 3 forming this imprint and generated by the printing inks or printing ink used, or to decouple the container or bottle material from the printed image, so that for the Formulation of the ink of a uniform surface quality can be assumed. Furthermore, the base layer but serves to take over performance characteristics of the ink, for example, in terms of recyclability, for example, when recycling the respective container 1, the equipment, ie the base layer 5 together with the imprint 6 easily from the respective container to solve, for example in a Treib-Sink method in which the components of the shredded or crushed container 2 are introduced into a separating liquid and separated by these the components of the container equipment 4 of the material of the container wall and at the same time in the separating liquid or in another liquid by floating from the Shredded components of the container material can be separated.
Die Materialwahl fĆ¼r die Basisschicht 5 und den Aufdruck 6 bzw. fĆ¼r die fĆ¼r diesen Aufdruck verwendeten Druckfarben oder Drucktinten ist dabei unter BerĆ¼cksichtigung des Materials der BehƤlter 1 u.a. so gewƤhlt, dass die Haftung oder Haftfestigkeit zwischen dem Aufdruck und der Basisschicht 5 grĆ¶ĆŸer ist als die Haftung oder Haftfestigkeit zwischen der Basisschicht 5 und der BehƤlterwand 3 und dass vorzugsweise die Gesamtdichte der Ausstattung 5 kleiner ist als die Dichte des Materials der BehƤlterwand 3. Weiterhin sind die Materialien so gewƤhlt, dass die Haftung des Aufdrucks 6 auf der Basisschicht 5 und die Haftung der Basisschicht 5 auf der BehƤlterwand 3 ausreichend groƟ sind, sodass wƤhrend des gesamten BehƤlterzyklus und insbesondere auch bei einer eventuellen Wiederverwendung der BehƤlter 1 eine Trennung nicht erfolgt. Weiterhin ist das Material fĆ¼r die Basisschicht 5 auch so gewƤhlt, dass diese eine ausreichende FlexibilitƤt besitzt, um Verformungen des jeweiligen BehƤlters 1 folgen zu kƶnnen. The choice of material for the base layer 5 and the imprint 6 or for the printing inks or printing inks used for this imprint is taking into account the material of the container 1 u.a. is selected so that the adhesion between the imprint and the base layer 5 is greater than the adhesion between the base layer 5 and the container wall 3, and preferably that the total density of the equipment 5 is smaller than the density of the material of the container wall 3. Further the materials are chosen so that the adhesion of the imprint 6 on the base layer 5 and the adhesion of the base layer 5 on the container wall 3 are sufficiently large, so that during the entire container cycle and in particular in a possible reuse of the container 1, a separation does not take place. Furthermore, the material for the base layer 5 is also chosen so that it has sufficient flexibility to follow deformations of the respective container 1 can.
Als Material fĆ¼r die Basisschicht 5 eigenen sich beispielsweise Polyolefine oder andere MonomƤre. Der Aufdruck 6 wird bevorzugt durch berĆ¼hrungsloses Bedrucken erzeugt, und zwar unter Verwendung von mehreren, jeweils einen Farbsatz des mehrfarbigen Aufdrucks 6 erzeugenden Druckkƶpfen, die nach dem Ink-Jet- Verfahren arbeiten und jeweils eine Vielzahl von elektrisch ansteuerbaren DĆ¼sen zum Ausbringen der Druckfarbe bzw. Drucktinte aufweisen. For example, polyolefins or other monomers are suitable as the material for the base layer 5. The imprint 6 is preferably produced by contactless printing, using a plurality of printheads, each producing a color set of the multicolored imprint 6, which work according to the ink-jet method and each having a plurality of electrically controllable nozzles for discharging the ink or Have printing ink.
Im Detail besteht die Anlage 2 aus mehreren in einer BehƤltertransportrichtung A aneinander anschlieƟenden Modulen 7.1 - 7.8, wobei sƤmtliche Module jeweils auf einer beispielsweise identischen Grundeinheit 8 einen um eine vertikale Modul- oder Maschinenachse MA umlaufend antreibbaren Rotor aufweisen, der an seinem Umfang mit einer Vielzahl von BehƤlteraufnahmepositionen bzw. Behandlungspositionen 10 versehen ist. Letztere sind der Funktion des jeweiligen Moduls 7.1 - 7.8 an diesem entsprechend ausgebildet. WƤhren des Betriebes der Anlage 2 sind die Rotoren 9 synchron, aber gegenlƤufig derart angetrieben, dass immer dann, wenn eine Behandlungspositionen 10 eines Rotors einen Anschlussoder Ɯbergabebereich des benachbarten Rotors 9 erreicht hat, an dem benachbarten Rotor ebenfalls eine Behandlungsposition 10 zur Aufnahme oder Abgabe eines BehƤlters 1 bereitsteht. Die Rotoren 9 schlieƟen transportmƤƟig aneinander an und bilden entsprechend der Figur 4 eine mƤanderartige BehƤltertransportstrecke 11 , auf der die BehƤlter 1 in der BehƤltertransportrichtung A von einer BehƤlteraufgabe 2.1 an eine BehƤlterabgabe 2.2 bewegt werden. Bei der dargestellten AusfĆ¼hrungsform bildet das Modul 7.1 beispielsweise ein Einlaufmodul, Ć¼ber welches die BehƤlter 1 der BehƤltertransportstrecke 11 zugefĆ¼hrt werden. GrundsƤtzlich besteht aber die Mƶglichkeit, dass in diesem ersten Modul bereits eine das Bedrucken fƶrdernde Vorbehandlung der BehƤlter 1 erfolgt. In dem Modul 7.2 erfolgt das Aufbringen der jeweiligen Basisschicht 5 auf die AuƟenflƤche der BehƤlterwand 3 mittels der gemeinsam mit den BehƤltern 1 umlaufenden Transferelemente 14. Die weiteren, in BehƤltertransportrichtung A folgenden Module 7.3 - 7.7 sind als Druckmodule ausgebildet, wobei in jedem Modul bzw. an den Behandlungspositionen 10 ihrer Rotoren 9 jeweils ein Farbsatz des mehrfarbigen Aufdrucks 6 auf die BehƤlter 1 bzw. auf die Basisschicht 5 aufgebracht wird. Ein Teil der Module 7.3 - 7.7 bzw. die Behandlungspositionen 10 an den dortigen Rotoren 9 dienen auch zum Trocknen bzw. Vernetzen der den jeweiligen Aufdruck 6 bildenden Druckfarbe oder Drucktinte. Das Modul 7.8 bildet das Auslaufmodul, mit dem die bedruckten BehƤlter an den BehƤlterauslauf 2.1 sowie an eine daran anschlieƟende Fƶrderstrecke gefƶrdert werden. Die Fƶrdereinrichtungen zum ZufĆ¼hren und AbfĆ¼hren der BehƤlter in bzw. aus der Anlage sowie auch die Rotoren 9 bzw. deren Behandlungspositionen 10 sind so ausgefĆ¼hrt, dass die BehƤlter 1 dort im Bereich ihrer oberen BehƤlterƶffnung hƤngend gehalten sind. GleichermaƟen kƶnnten die BehƤlter auf einem Tragteller stehen und mittels einer Zentriertulpe gehalten sein. Das Bedrucken der BehƤlter 1 in den als Druckmodule ausgebildeten Modulen bzw. an den dortigen Behandlungspositionen 10 erfolgt berĆ¼hrungslos mit nach dem InkJet-Verfahren arbeitenden Druckkƶpfen, von denen jeweils wenigstens einer an jeder Behandlungsposition 10 vorgesehen ist. Die Besonderheit der Erfindung besteht in der Ausbildung des Moduls 7.2 bzw. der Behandlungspositionen 10, an denen das Aufbringen der Basisschicht 5 durch Aufwalzen bzw. eines Coating-Moduls, hier ggf. Modul 7.7, bei welchem mit einem analogen Verfahren eine abschlieƟende Versiegelung, Lackierung oder dergleichen des Druckbildes erfolgt. Solch ein Coating-Modul wird nachfolgend nicht gesondert beschrieben oder genannt, da es grundsƤtzlich analog aufgebaut ist bzw. analog betrieben wird. In detail, the system 2 consists of several in a container transport direction A adjoining modules 7.1 - 7.8, all modules on each a basic unit 8, which is identical, for example, has a rotor which can be driven in rotation around a vertical module or machine axis MA and is provided at its circumference with a multiplicity of container receiving positions or treatment positions 10. The latter are the function of the respective module 7.1 - 7.8 trained on this accordingly. During operation of the system 2, the rotors 9 are synchronously, but driven in opposite directions such that whenever a treatment positions 10 of a rotor has reached a connection or transfer region of the adjacent rotor 9, on the adjacent rotor also a treatment position 10 for receiving or delivering a Container 1 is ready. The rotors 9 close to each other in terms of transport and, according to FIG. 4, form a meander-like container transport path 11, on which the containers 1 are moved in the container transport direction A from a container task 2.1 to a container delivery 2.2. In the illustrated embodiment, the module 7.1 forms, for example, an inlet module, via which the container 1 of the container transport path 11 are supplied. In principle, however, there is the possibility that a pre-treatment of the container 1, which promotes the printing, takes place in this first module. In the module 7.2, the application of the respective base layer 5 on the outer surface of the container wall 3 by means of circulating together with the containers 1 transfer elements 14. The other, in container transport direction A following modules 7.3 - 7.7 are designed as pressure modules, wherein in each module or At the treatment positions 10 of their rotors 9, a color set of the multicolored imprint 6 is respectively applied to the containers 1 and to the base layer 5. A part of the modules 7.3 - 7.7 or the treatment positions 10 on the local rotors 9 are also used for drying or crosslinking of the respective imprint 6-forming printing ink or printing ink. The module 7.8 forms the outlet module, with which the printed containers are conveyed to the container outlet 2.1 and to a subsequent conveyor line. The conveying devices for feeding and discharging the containers into and out of the system as well as the rotors 9 or their treatment positions 10 are designed so that the containers 1 are held suspended there in the region of their upper container opening. Similarly, the containers could stand on a support plate and be held by a centering tulip. The printing of the container 1 in the modules designed as pressure modules or at the local treatment positions 10 is effected without contact with working according to the inkjet printheads, of which at least one is provided at each treatment position 10. The peculiarity of the invention consists in the design of the module 7.2 or the treatment positions 10, at which the application of the base layer 5 by rolling or a coating module, here optionally Module 7.7, in which an analogous process is followed by a final sealing, painting or the like of the printed image. Such a coating module is not separately described or named below, since it is basically constructed analogously or is operated analogously.
Die Figur 4 zeigt in schematischer Einzeldarstellung und in Draufsicht eine Auftragoder Beschichtungseinrichtung 12 einer Behandlungsposition 10 des Moduls 7.2, zusammen mit einer Teildarstellung eines BehƤlters 1 , und zwar wƤhrend des Aufbringens des die Basisschicht 5 bildenden flĆ¼ssigen oder flieƟfƤhigen Basisschichtmaterials. Jede Behandlungsposition 10 des Moduls 7.2 ist mit einer eigenstƤndigen Beschichtungseinrichtung 12 ausgebildet. FIG. 4 shows, in a schematic individual representation and in plan view, an application or coating device 12 of a treatment position 10 of the module 7.2, together with a partial representation of a container 1, specifically during the application of the liquid or flowable base layer material forming the base layer 5. Each treatment position 10 of the module 7.2 is formed with an independent coating device 12.
Die Beschichtungseinrichtung 12 umfasst u.a. einen TrƤger 13, der um eine parallel zur Maschinenachse MA orientierte TrƤgerachse TA des Moduls 7.2 antreibbar ist (Pfeil B), und zwar synchron mit der Drehbewegung des Rotors 9. Um die TrƤgerachse TA in gleichmƤƟigen WinkelabstƤnden verteilt und in dem selben radialen Abstand von dieser TrƤgerachse TA sind am TrƤger 13 mehrere segmentartige Transferelemente 14 jeweils um eine Achse PA parallel zur Maschinenachse MA und zur TrƤgerachse TA schwenkbar gelagert. Die Transferelemente 14 sind jeweils an ihrer bezogen auf die TrƤgerachse TA radial auƟenliegenden Seite mit einer Transferschicht 15 ausgebildet, die Teil einer KreiszylinderflƤche um eine parallel zu den Achsen MA, TA und PA verlaufenden Achse ist. Bei in Richtung des Pfeils B umlaufend angetriebenen TrƤger 13 wird jede Transferelement 14 mit seiner Transferschicht 15 zunƤchst an einer Station 16 vorbei bewegt, mit der das die Basisschicht 5 bildende Basisschichtmaterial mit einer definierten Schichtdicke und einer definierten Breite (in Richtung der Achse PA) sowie mit einer definierten LƤnge (in Drehrichtung B) auf die Transferschicht 15 aufgebracht wird. Die Station 16 weist hierfĆ¼r eine um eine Achse parallel zur Maschinenachse MA umlaufend angetriebene Trommel 17 auf, die Ƥhnlich der Leimtrommel eines Etikettieraggregates an einer nicht dargestellten Station mit einem gleichmƤƟigen, die erforderliche Schichtdicke aufweisenden Auftrag des Basisschichtmaterials versehen wird. Die Transferelemente 14 wƤlzen sich mit ihrer Transferschicht 15 schlupffrei oder im Wesentlichen schlupffrei an der Trommel 17 ab, und zwar auch durch entsprechende Ansteuerung ihrer Schwenkbewegung um die Achsen PA. Jedes so an seiner Transferschicht 15 mit dem Auftrag des Basisschichtmaterials versehenes Transferelement 14 gelangt dann mit dem rotierenden TrƤger 13 an eine Ɯbergabeposition 18, an der das Basisschichtmaterial von der Transferschicht 15 auf die AuƟenflƤche der BehƤlterwand 3 des bereitstehenden BehƤlters 1 Ć¼bertragen wird, und zwar durch Aufwalzen. HierfĆ¼r werden bei in Richtung des Pfeils B kontinuierlich umlaufendem TrƤger 13 der BehƤlter 1 um seine vertikale BehƤlterachse in Richtung des Pfeils C gedreht und das betreffende Transferelement 14 um die Achse PA gesteuert derart geschwenkt bzw. gedreht, dass sich der BehƤlter 1 mit der AuƟenflƤche seiner BehƤlterwand 3 schlupffrei oder im Wesentlichen schlupffrei auf der Transferschicht 15 abwƤlzt und hierdurch das Basisschichtmaterial mit der fĆ¼r die Basisschicht 5 erforderlichen Dicke auf die BehƤlterwand 3 aufgebracht wird. Die Beschichtungseinrichtung 12 weist weiterhin eine Station 19 zum Trocknen bzw. AushƤrten oder Vernetzen der Basisschicht 5 auf, beispielsweise durch ErwƤrmen, z.B. durch Infrarot- WƤrmestrahlung und/oder durch UV-Licht. The coating device 12 includes, inter alia, a carrier 13 which is drivable about a parallel to the machine axis MA oriented carrier axis TA of the module 7.2 (arrow B), in synchronism with the rotational movement of the rotor 9. To the carrier axis TA distributed at equal angular intervals and in the the same radial distance from this support axis TA are on the carrier 13 a plurality of segment-like transfer elements 14 each pivotable about an axis PA parallel to the machine axis MA and the support axis TA. The transfer elements 14 are each formed on their relative to the support axis TA radially outer side with a transfer layer 15 which is part of a circular cylindrical surface about an axis parallel to the axes MA, TA and PA extending axis. When driven in the direction of arrow B circumferentially carrier 13 each transfer element 14 is first moved with its transfer layer 15 at a station 16, with which the base layer 5 forming base layer material having a defined layer thickness and a defined width (in the direction of the axis PA) and with a defined length (in the direction of rotation B) is applied to the transfer layer 15. For this purpose, the station 16 has a drum 17 which is driven circumferentially about an axis parallel to the machine axis MA and which is provided with a uniform application of the base layer material having the required layer thickness, similar to the glue drum of a labeling unit at a station (not shown). The transfer elements 14 roll with their transfer layer 15 without slip or substantially slip-free on the drum 17, and indeed by appropriate control of their pivotal movement about the axes PA. Each thus provided on its transfer layer 15 with the order of the base layer material transfer element 14 then passes with the rotating carrier 13 to a transfer position 18, at which the base layer material is transferred from the transfer layer 15 to the outer surface of the container wall 3 of the container 1, by rolling on. For this purpose, in the direction of the arrow B continuously circulating carrier 13 of Container 1 is rotated about its vertical axis of the container in the direction of arrow C and the respective transfer element 14 controlled about the axis PA pivoted or rotated so that the container 1 with the outer surface of its container wall 3 without slippage or substantially free of slip rolls on the transfer layer 15 and As a result, the base layer material with the thickness required for the base layer 5 is applied to the container wall 3. The coating device 12 furthermore has a station 19 for drying or curing or crosslinking of the base layer 5, for example by heating, for example by infrared thermal radiation and / or by UV light.
Wird als Basisschichtmaterial ein flĆ¼ssiges Material verwendet, so sind die Transferelemente 14 an ihren Transferschichten 15 jeweils mit einem weichen und saugfƤhigen, beispielsweise mit einem schwammartigen Material ausgebildet und das Aufbringen des Basisschichtmaterials erfolgt durch leichtes Ɯberstreichen der AuƟenflƤche der BehƤlterwand 3 mit der sich dort abwƤlzenden Transferschicht 15 und ohne oder im Wesentlichen ohne Krafteinwirkung der Transferschicht auf den BehƤlter 1 . If a liquid material is used as the base layer material, then the transfer elements 14 are each formed on their transfer layers 15 with a soft and absorbent, for example with a sponge-like material and the base layer material is applied by gently sweeping over the outer surface of the container wall 3 with the transfer layer rolling there 15 and without or substantially without the action of force of the transfer layer on the container. 1
In einer bevorzugten AusfĆ¼hrung der Beschichtungseinrichtung 12 sind die Transferschichten 15 jeweils Segmente eines gedachten, die Achse TA konzentrisch umschlieƟenden Kreiszylinders, sodass dann eine gesteuerte Schwenkbewegung der Transferelemente 14 um die Achsen PA nicht erforderlich ist. In a preferred embodiment of the coating device 12, the transfer layers 15 are each segments of an imaginary, circular axis concentrically surrounding the axis TA, so that then a controlled pivotal movement of the transfer elements 14 about the axes PA is not required.
Die Figur 5 zeigt eine Beschichtungseinrichtung 12a, die anstelle der Beschichtungseinrichtung 12 an jeder Behandlungsposition 10 des Moduls 7.2 vorgesehen ist. Die Beschichtungseinrichtung 12a umfasst wiederum einen um die TrƤgerachse TR synchron mit der Drehbewegung des Rotors 9 in Richtung des Pfeils B angetriebenen TrƤger 20, an welchem um die Achse TR in gleichmƤƟigen WinkelabstƤnden versetzt mehrere segmentartige Auftrags- und Transferelemente 21 vorgesehen sind, die jeweils bezogen auf die Achse TR radial auƟen liegend eine Transferschicht 22 zum Ɯbertragen des Basisschichtmaterials auf den sich an dieser Transferschicht 21 abwƤlzenden BehƤlter 1 bilden. Die Transferschichten 22 sind bei dargestellten AusfĆ¼hrungsform jeweils radial auƟen an einer DƤmpf- und Pufferschicht 23 aus einem weichen, elastischen und sauffƤhige sowie auch durchlƤssigen Material angeordnet, welches auf einem TransferschichtentrƤger 24 vorgesehen ist, der zumindest an seiner bezogen auf die Achse TR radial auƟenliegenden Seite eine um die Achse TR gekrĆ¼mmte TeilkreiszylinderflƤche bildet, sodass auch die Transferschicht 22 entsprechend gekrĆ¼mmt ist. Der TransferschichtentrƤger 24 besteht aus einem Material mit ausreichender Festigkeit, beispielsweise aus Metall (Sintermetall) oder Keramik (Sinterkeramik) und ist porƶs oder mit einer Vielzahl von DurchbrĆ¼chen oder MikroƖffnungen derart ausgebildet, dass sich innerhalb des TransferschichtentrƤgers 24 eine gleichmƤƟige Druckverteilung fĆ¼r das unter Druck durch den TransferschichtentrƤger 24 gefƶrderte Basisschichtmaterial sowie insbesondere auch eine gleichmƤƟige Verteilung des Basisschichtmaterial in der DƤmpf- und Pufferschicht 23 ergibt, d.h. diese Schicht mƶglichst gleichmƤƟig mit dem flĆ¼ssigen Basisschichtmaterial getrƤnkt ist. An der DƤmpf- und Pufferschicht 23 abgewandten Seite des TransferschichtentrƤgers 24 bzw. der diesen TrƤger bildenden ringsegmentfƶrmigen Wand ist das Transferelement 21 mit einer Versorgungs- oder Pufferkammer 25 versehen, und zwar zur Aufnahme eines Puffervolumens des flĆ¼ssigen Basisschichtmaterials. Bezogen auf die Achse TR radial auƟen liegend ist der Innenraum der Versorgungs- oder Pufferkammer 25 durch den TransferschichtentrƤger 24 begrenzt, sodass das Basisschichtmaterial aus der Versorgungs- oder Pufferkammer 25 unter Druck durch den TransferschichtentrƤger 24 in die DƤmpf- und Pufferschicht 23 gefƶrdert werden kann. Weiterhin ist der Innenraum der Versorgungs- oder Pufferkammer 25 Ć¼ber eine Leitung 26 mit einer Quelle zum ZufĆ¼hren des Basisschichtmaterials unter Druck sowie mit einer Leitung 27 zum RĆ¼ckfĆ¼hren von Ć¼berschĆ¼ssigem Basisschichtmaterial an diese Quelle verbunden, von der in der Figur 5 lediglich eine Druck- oder Fƶrderpumpe 28 gezeigt ist. In der Versorgungs- oder Pufferkammer 25 ist weiterhin eine elektrische Heizung 29 vorgesehen, mit der das dortige Basisschichtmaterial temperaturgeregelt auf einer fĆ¼r die Beschichtung optimalen Temperatur gehalten wird, so dass sich gleichbleibende Bedingungen oder Parameter ergeben. Die Heizung 29 kann bei entsprechender Dimensionierung auch dazu verwendet werden, um das Transferelement 21 am Ende einer Produktionsphase durch Hitzeeinwirkung bzw. pyrolytisch zu reinigen. Die elektrischen AnschlĆ¼sse der Heizung 29 und ebenso die Leitungen 26 und 27 sind Ć¼ber wenigstens einen Drehverteiler 30 gefĆ¼hrt, sodass die Quelle fĆ¼r das Basisschichtmaterial sowie Einrichtungen zur Ansteuerung und/oder Regelung der Heizung 29 fĆ¼r sƤmtliche Behandlungspositionen 10 des Moduls 7.2 gemeinsam in der zugehƶrigen Grundeinheit 8 untergebracht werden kƶnnen. FIG. 5 shows a coating device 12a, which is provided instead of the coating device 12 at each treatment position 10 of the module 7.2. The coating device 12a in turn comprises a support 20, which is driven about the support axis TR in synchronism with the rotational movement of the rotor 9 in the direction of the arrow B, on which a plurality of segment-like application and transfer elements 21 are provided at equal angular intervals about the axis TR the axis TR lying radially outwardly form a transfer layer 22 for transferring the base layer material onto the container 1 which rolls on this transfer layer 21. In the illustrated embodiment, the transfer layers 22 are each arranged radially on the outside of a damping and buffer layer 23 of a soft, elastic and absorbable material which is provided on a transfer layer carrier 24, at least on its radially outer side with respect to the axis TR forms a curved about the axis TR part circle cylinder surface, so that the transfer layer 22 is curved accordingly. The transfer layer carrier 24 is made of a material having sufficient strength, for example of metal (sintered metal) or ceramic (sintered ceramic) and is porous or formed with a plurality of openings or micro-openings such that within the transfer layer carrier 24, a uniform pressure distribution for the under pressure the base layer material conveyed by the transfer layer carrier 24, and in particular also a uniform distribution of the base layer material in the damping and buffer layer 23, ie this layer is impregnated as evenly as possible with the liquid base layer material. At the damping and buffer layer 23 side facing away from the transfer layer support 24 and the carrier forming this annular segment-shaped wall, the transfer element 21 is provided with a supply or buffer chamber 25, namely for receiving a buffer volume of the liquid base layer material. Relative to the axis TR lying radially outward, the interior of the supply or buffer chamber 25 is limited by the transfer layer carrier 24, so that the base layer material from the supply or buffer chamber 25 can be conveyed under pressure through the transfer layer carrier 24 in the damping and buffer layer 23. Furthermore, the interior of the supply or buffer chamber 25 is connected via a line 26 to a source for supplying the base layer material under pressure and to a conduit 27 for returning excess base layer material to this source, of which only one pressure or delivery pump is shown in FIG 28 is shown. In the supply or buffer chamber 25, an electric heater 29 is further provided, with which the local base layer material is temperature-controlled at a temperature optimum for the coating, so that there are constant conditions or parameters. The heater 29 can also be used with appropriate dimensioning to clean the transfer element 21 at the end of a production phase by heat or pyrolytic. The electrical connections of the heater 29 and also the lines 26 and 27 are guided via at least one rotary distributor 30, so that the source of the base layer material and means for controlling and / or regulating the heater 29 for all treatment positions 10 of the module 7.2 together in the associated basic unit 8 can be accommodated.
Das Aufbringen der Basisschicht erfolgt an der Beschichtungseinrichtung 12a durch Aufwalzen, d.h. dadurch, dass sich der an einem BehƤltertrƤger 31 hƤngend gehaltene und mit diesen BehƤltertrƤger um die vertikale BehƤlterachse gedrehte BehƤlter 1 an der jeweiligen, in Richtung des Pfeils B umlaufenden Transferschicht 22 schlupffrei oder im Wesentlichen schlupffrei abwƤlzt, und zwar durch leichtes Ɯberstreichen der AuƟenflƤche der BehƤlterwand 3 mit der Transferschicht 22 und ohne oder im Wesentlichen ohne Krafteinwirkung der Transferschicht 22 auf den BehƤlter 1. Auch die Beschichtungseinrichtung 12a weist wiederum eine, allerdings nicht dargestellte Station zum Trocknen oder AushƤrten der aufgebrachten Basisschicht 5 auf. The application of the base layer takes place on the coating device 12a by rolling on, ie by holding the container 1 suspended on a container carrier 31 and rotated about the vertical container axis with this container carrier at the respective transfer layer circulating in the direction of the arrow B. 22 without slip or essentially without slippage, by gently sweeping the outer surface of the container wall 3 with the transfer layer 22 and without or substantially no force of the transfer layer 22 on the container 1. The coating device 12a in turn has a, but not shown station for Drying or curing of the applied base layer 5 on.
Die Figur 6 zeigt als weitere AusfĆ¼hrungsform eine Beschichtungseinrichtung 12b, die zum Aufbringen der Basisschicht 5 jeweils an den Behandlungspositionen 10 des Moduls 7.1 vorgesehen ist und in wesentlichen Elementen mit der Beschichtungseinrichtung 12a Ć¼bereinstimmt, sodass in den Figuren 6 und 7 fĆ¼r solche Elemente, die konstruktiv und/oder funktional den Elementen der Figur 5 entsprechen, die selben Bezugsziffern wie in der Figur 5 verwendet sind. Die Beschichtungseinrichtung 12b unterscheidet sich von der Beschichtungseinrichtung 12a aber u.a. dadurch, dass an dem jeweiligen, dem Transferelement 21 der untere Rand der DƤmpf- und Pufferschicht 23 und der den TransferschichtentrƤger 24 bildenden ringsegmentfƶrmigen Wand gegen ein Ringsegment 32 anliegen, welches aus einem porƶsen Material, beispielsweise aus Metall oder Keramik mit einer Vielzahl von Mikroporen oder MikroƖffnungen besteht. Das Ringsegment 32 bildet den Einlass einer Sammelkammer 33 und mit dieser eine Drainageeinheit zum Sammeln und RĆ¼ckfĆ¼hren von Basisschichtmaterial aus der DƤmpf- und Pufferschicht 23 und aus dem TransferschichtentrƤger 24 wƤhrend des Betriebes der Anlage 2, aber auch nach dem Abschalten dieser Anlage. Die Sammelkammer 33 ist hierfĆ¼r Ć¼ber eine Leitung 34 und eine Fƶrderpumpe 35 mit einer Kammer 36 verbunden, an die auch die Pumpe 28 angeschlossen ist und die beispielsweise die in der Grundeinheit 8 untergebrachte Quelle fĆ¼r das Basisschichtmaterial oder aber ein am Rotor 5 vorgesehener Zwischenspeicher fĆ¼r dieses Material ist. Die Leitung 34 ist ebenfalls Ć¼ber wenigstens einen Drehverteiler gefĆ¼hrt. Die Beschichtungseinrichtung 12b ist weiterhin mit einem Sensor 37, beispielsweise Laser-Sensor zur Distanz- oder Belegungsmessung ausgebildet, d.h. der Sensor 37 liefert z.B. ein von dem Abstand zwischen der BehƤlterauƟenflƤche und der Transferschicht 22 und/oder ein von der elastischen Verformung der DƤmpf- und Pufferschicht 23 durch den BehƤlter 1 abhƤngiges Signal, mit dem z.B. die Zustellung der Beschichtungseinrichtung 12a in Bezug auf den jeweiligen BehƤlter 1 zur Erzielung des kraftlosen oder im Wesentlichen kraftlosen Aufbringens des Beschichtungsmaterial gesteuert und/oder das ordnungsgemƤƟe Aufbringen der Basisschicht 5 Ć¼berwacht wird. Die Figur 7 zeigt in Teildarstellung das Transferelement 21 einer Beschichtungseinrichtung 12c, die sich von der Beschichtungseinrichtung 12b im Wesentlichen nur dadurch unterscheidet, dass das den Einlass in die Sammelkammer 33 bildende Ringsegment 32 lediglich unterhalb der DƤmpf- und Pufferschicht 23 vorgesehen ist, Ć¼ber das Ringsegment 32 und die Sammelkammer 33 bei dieser AusfĆ¼hrungsform also lediglich Ć¼berschĆ¼ssiges oder nicht benƶtigtes Basisschichtmaterial aus der DƤmpf- und Pufferschicht 23 abgefĆ¼hrt wird, d.h. das Ringsegment 32 und die Sammelkammer 33 eine Drainage fĆ¼r die DƤmpf- und Pufferschicht 23 bilden. In der Figur 7 ist mit 38 das von der Transferschicht 22 bereitgestellte Basisschichtmaterial schematisch angedeutet. FIG. 6 shows, as a further embodiment, a coating device 12b, which is provided for applying the base layer 5 to the treatment positions 10 of the module 7.1 and in essential elements coincides with the coating device 12a, so that in FIGS and / or functionally correspond to the elements of Figure 5, the same reference numerals as in Figure 5 are used. The coating device 12b differs from the coating device 12a, however, inter alia in that on the respective, the transfer element 21, the lower edge of the damping and buffer layer 23 and the transfer layer carrier 24 forming ring segment-shaped wall abut against a ring segment 32, which consists of a porous material, For example, consists of metal or ceramic with a plurality of micropores or micro-openings. The ring segment 32 forms the inlet of a collection chamber 33 and with this a drainage unit for collecting and returning base layer material from the damping and buffer layer 23 and from the transfer layer support 24 during the operation of the system 2, but also after switching off this system. For this purpose, the collection chamber 33 is connected via a line 34 and a feed pump 35 to a chamber 36, to which the pump 28 is also connected and which for example contains the source for the base layer material accommodated in the base unit 8 or a temporary store provided for this purpose on the rotor 5 Material is. The line 34 is also guided over at least one rotary distributor. The coating device 12b is further provided with a sensor 37, for example laser sensor for distance or occupancy measurement, ie, the sensor 37 provides, for example, one of the distance between the container outer surface and the transfer layer 22 and / or one of the elastic deformation of the damping and Buffer layer 23 by the container 1-dependent signal with which controls the delivery of the coating device 12a with respect to the respective container 1 to achieve the powerless or substantially powerless application of the coating material and / or the proper application of the base layer 5 is monitored. FIG. 7 shows a partial illustration of the transfer element 21 of a coating device 12c, which differs from the coating device 12b substantially only in that the ring segment 32 forming the inlet into the collecting chamber 33 is provided only below the damping and buffer layer 23, via the ring segment 32 and the collection chamber 33 in this embodiment, therefore, only excess or unneeded base layer material from the damping and buffer layer 23 is dissipated, ie, the ring segment 32 and the collection chamber 33 form a drainage for the damping and buffer layer 23. In FIG. 7, at 38, the base layer material provided by the transfer layer 22 is schematically indicated.
In einer nicht dargestellten Weiterentwicklung ist an oder fĆ¼r das Transferelement 21 eine Verschlusskappe oder -kapsei fĆ¼r Reinigungszyklen vorgesehen, mittels welcher ein geschlossener Ablaufraum oder -spalt vor der Transferschicht 21 geschaffen werden kann. Ein Reinigungs- oder Lƶsungsmittel kann nach dem Anbringen oder VerschlieƟen der Transferschicht 21 Ć¼ber die Leitung 27 durch die Schichten 24 und 23 gespĆ¼lt werden und wird Ć¼ber den so gebildeten Ablaufraum oder -spalt und nachfolgend die Sammelkammer 33 mittels den Pumpen 28 und 35 im Kreis gefĆ¼hrt bzw. abgeleitet. Diese Verschlusskappe oder -kapsei ist dabei idealerweise als automatisch verschenk- oder verfahrbares Element ausgebildet. Der Einsatz der Vakuumpumpe 35 ist nicht zwingend nƶtig, deren Einsatz vermindert aber den Verlust von Lƶsungs- oder Reinigungsmittel, da gezielt in der Ableitung ein Unterdruck eingestellt werden kann, wodurch sich weiterhin der Konstruktive Aufwand fĆ¼r die Abdichtung der Verschlusskappe oder -kapsei verringert. In a further development, not shown, a closure cap or capsule for cleaning cycles is provided on or for the transfer element 21, by means of which a closed discharge space or gap can be created in front of the transfer layer 21. A cleaning or solvent can be rinsed through the layers 24 and 23 via the line 27 after the attachment or closing of the transfer layer 21 and is circulated over the drainage space or gap thus formed and subsequently the collection chamber 33 by means of the pumps 28 and 35 or derived. This cap or capsule is ideally designed as an automatically verschenk- or movable element. The use of the vacuum pump 35 is not absolutely necessary, but their use reduces the loss of solvents or cleaning agents, as targeted in the derivative, a negative pressure can be adjusted, thereby further reducing the design effort for the sealing of the cap or capsei.
Die Erfindung wurde voranstehend an AusfĆ¼hrungsbeispielen beschrieben. Es versteht sich, dass zahlreiche Abwandlungen und Ƅnderungen mƶglich sind, ohne dass dadurch der der Erfindung zugrundeliegende Erfindungsgedanke verlassen wird. So wurde vorstehend davon ausgegangen, dass die Transferschichten 15 und 24 jeweils an Transferelementen 14 bzw. 21 in Form von Segmenten ausgebildet sind. SelbstverstƤndlich besteht auch die Mƶglichkeit, dass die jeweilige Beschichtungseinrichtung 12, 12a, 12b und 12c eine durchgehende, ringfƶrmige, beispielsweise die Achse TR des jeweiligen TrƤgers 13 bzw. 20 umschlieƟende Transferschicht aufweist, und zwar insbesondere dann, wenn der Auftrag des Basisschichtmaterials derart erfolgt, dass die Basisschicht den jeweiligen BehƤlter an einem BehƤlterauƟenbereich vollstƤndig umschlieƟt. The invention has been described above by means of exemplary embodiments. It is understood that numerous modifications and changes are possible without thereby departing from the inventive concept underlying the invention. It has been assumed above that the transfer layers 15 and 24 are respectively formed on transfer elements 14 and 21 in the form of segments. Of course, there is also the possibility that the respective coating device 12, 12a, 12b and 12c has a continuous, annular transfer layer enclosing, for example, the axis TR of the respective carrier 13 or 20, in particular when the application of the base layer material takes place in such a way, the base layer completely encloses the respective container at a container outer region.
Weiterhin besteht auch die Mƶglichkeit, die Basisschicht 5 mehrschichtig mit mehreren Einzelschichten auszubilden, wobei dann bei der Vorrichtung 2 jede Einzelschicht an unterschiedlichen Modulen erzeugt wird. Wie vorstehend genannt, kann analog eine Versiegelung oder eine Coating angebracht werden, so dass der Begriff der ā€žBasisschicht" hier nicht einschrƤnkend zu verstehen ist, sondern allgemein alsā€žBeschichtung" verstanden werden muss. Furthermore, it is also possible to form the base layer 5 in a multi-layered manner with a plurality of individual layers, with the device 2 then producing each individual layer on different modules. As mentioned above, can be applied analogously, a seal or a coating, so that the term "base layer" is not meant to be limiting, but must be generally understood as a "coating".
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 BehƤlter 1 container
2 Vorrichtung oder Anlage Ā 2 device or system
2.1 BehƤltereinlauf 2.1 Container inlet
2.2 BehƤlterauslauf Ā 2.2 Container outlet
3 BehƤlterwand Ā 3 container wall
4 BehƤlterausstattung Ā 4 container equipment
5 Basisschicht, Beschichtung Ā 5 base layer, coating
6 Aufdruck 6 imprint
7.1 - 7.8 Modul Ā 7.1 - 7.8 module
8 Grundeinheit Ā 8 basic unit
9 Rotor Ā 9 rotor
10 Behandlungsposition Ā 10 treatment position
11 BehƤltertransportstrecke durch die Anlage 2 11 Container transport route through the system 2
12, 12a, 12b, 12c Beschichtungseinrichtung zum Aufbringen des Ā 12, 12a, 12b, 12c coating device for applying the
Basisschichtmaterials Ā Base layer material
13 TrƤger Ā 13 carriers
14 Transferelement Ā 14 transfer element
15 Transferschicht 15 transfer layer
16 Station Ā 16 station
17 Trommel Ā 17 drum
18 Ɯbergabeposition Ā 18 transfer position
19 Station zum AushƤrten und/oder Ā 19 station for curing and / or
Vernetzen der Basisschicht Ā Networking the base layer
20 TrƤger Ā 20 carriers
21 Transferelement Ā 21 transfer element
22 Transferschicht Ā 22 transfer layer
23 Pufferschicht Ā 23 buffer layer
24 TransferschichtentrƤger 24 transfer layer carrier
25 Versorgungs- oder Pufferkammer Ā 25 supply or buffer chamber
26, 27 Leitung Ā 26, 27 line
28 Pumpe Ā 28 pump
29 elektrische Heizung Ā 29 electric heating
30 Drehverteiler 30 rotary distributor
31 BehƤltertrƤger Ā 31 container carriers
32 Ringsegment Ā 32 ring segment
33 Sammelkammer Ā 33 collection chamber
34 Leitung Ā 34 line
35 Pumpe 36 Kammer 35 pump 36 chamber
37 Sensor Ā 37 sensor
38 Basisschichtmaterial A BehƤitertransportrichtung Ā 38 Base Layer Material A Carrier Transport Direction
B Drehrichtung des TrƤgers 13 bzw. 20Ā B direction of rotation of the carrier 13 and 20 respectively
C Drehrichtung des BehƤlters C Direction of rotation of the container
TA Drehachse des TrƤgers 13 bzw. 20Ā TA axis of rotation of the carrier 13 and 20, respectively
PA Schwenkachse der Transferelemente 14 MA Maschinen- oder Rotorachse PA Swivel axis of the transfer elements 14 MA Machine or rotor axis

Claims

PatentansprĆ¼che claims
1. Vorrichtung zum Aufbringen von Ausstattungen (4) auf BehƤlter durch Bedrucken, insbesondere digitale Bedrucken zum Beispiel mittels Tintenstrahldruckverfahren, mit einem BehƤltertransportsystem (7.1 - 7.8), mit wenigstens einer Behandlungsposition (10) an dem BehƤltertransportsystem (7.1 - 7.8), an der die BehƤlter (1) mit jeweils wenigstens einer Beschichtung (5), nƤmlich eine Basisschicht und/oder einer Deckschicht versehen werden, auf der das Bedrucken der BehƤlter (1) erfolgt, dadurch gekennzeichnet, dass die wenigstens eine Behandlungsposition (10) eine Beschichtungseinrichtung (12, 12a, 12b, 12c) mit mindestens einem Transferelement (14, 21) aufweist, zum Aufbringen des die Basisschicht bildenden Basisschichtmaterials durch AufwƤlzen oder Abrollen. Device for applying equipment (4) to containers by printing, in particular digital printing, for example by means of ink jet printing, with a container transport system (7.1 - 7.8), with at least one treatment position (10) on the container transport system (7.1 - 7.8), at the containers (1) are each provided with at least one coating (5), namely a base layer and / or a cover layer, on which the printing of the containers (1) takes place, characterized in that the at least one treatment position (10) comprises a coating device ( 12, 12a, 12b, 12c) with at least one transfer element (14, 21) for applying the base layer material forming the base layer by rolling or unrolling.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Beschichtungseinrichtung (12, 12a, 12b) wenigstens ein umlaufendes und eine Transferschicht (15, 22) aufweisendes Transferelement (14, 21) umfasst, auf dessen ƤuƟeren OberflƤche sich der jeweilige BehƤlter (1) zum Aufbringen der Beschichtung (5) oder des diese Beschichtung bildenden Basisschichtmaterials abwƤlzt, vorzugsweise schlupffrei oder im Wesentlichen schlupffrei abwƤlzt, das Transferelement (14, 21) sich auf dem jeweiligen BehƤlter (1) abwƤlzt oder sowohl Transferelement (14, 21) der jeweilige BehƤlter (1) sich aneinander abwƤlzen. 2. Apparatus according to claim 1, characterized in that the coating device (12, 12a, 12b) comprises at least one circulating and a transfer layer (15, 22) exhibiting transfer element (14, 21) on the outer surface of which the respective container (1 ) for application of the coating (5) or the base layer material forming this coating rolls, preferably without slip or substantially slip-free, the transfer element (14, 21) rolls on the respective container (1) or both transfer element (14, 21) of the respective Container (1) roll off each other.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die BehƤlter (1) und/oder das Transferelement (14, 21) derart angeordnet und antreibbar sind, dass keine BerĆ¼hrung zwischen Transferelement (14, 21) und BehƤlter (1) erfolgt. 3. A device according to claim 2, characterized in that the container (1) and / or the transfer element (14, 21) are arranged and driven such that no contact between the transfer element (14, 21) and container (1).
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der lotrechte OberflƤchenabstand im Bereich grĆ¶ĆŸer AnnƤherung zwischen BehƤlter (1) und Transferelement (14, 21) einstellbar ist. 4. Apparatus according to claim 3, characterized in that the vertical surface distance in the region of greater approximation between the container (1) and transfer element (14, 21) is adjustable.
5. Vorrichtung nach einem der vorstehenden AnsprĆ¼che, dadurch gekennzeichnet, dass das Transferelement (14, 21) eine Transferschicht (15, 22) aufweist, welche fĆ¼r das flieƟfƤhige Beschichtungsmaterial durchlƤssig ist. 5. Device according to one of the preceding claims, characterized in that the transfer element (14, 21) has a transfer layer (15, 22) which is permeable to the flowable coating material.
6. Vorrichtung nach einem der vorgenannten AnsprĆ¼cheƶ, dadurch gekennzeichnet, dass die Transferschicht (15, 22) von einer elastischen und/oder weichen und/oder saugfƤhigen und/oder schwammartigen DƤmpf- und Pufferschicht (23) gebildet ist oder eine solche umfasst. 6. Device according to one of the preceding claimsƶ, characterized in that the transfer layer (15, 22) of an elastic and / or soft and / or absorbent and / or sponge-like damping and buffer layer (23) is formed or comprises such.
7. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, dadurch gekennzeichnet, dass das die Transferschicht (15, 22) bildende Transferelement (14, 21) mit wenigstens einem weiteren gleichartigen Transferelement (14, 21) an einem um eine TrƤgerachse (TR) umlaufend antreibbaren TrƤger (13, 20) vorgesehen ist. 7. Device according to one of the preceding claims, characterized in that the transfer layer (15, 22) forming transfer element (14, 21) with at least one further similar transfer element (14, 21) on a carrier axis (TR) circumferentially drivable carrier (13, 20) is provided.
8. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, dadurch gekennzeichnet, dass die Beschichtungseinrichtung (12) eine Station (16) aufweist, an der das umlaufende Transferelement (14) zum Aufbringen des Basisschichtmaterials auf die Transferschicht (15) vorbei bewegt wird, bevor das Transferelement (15) bei seinem weiteren Umlauf eine Ɯbergabeposition (18) erreicht, an der sich der BehƤlter (1) an der Transferschicht (15) abwƤlzt. 8. Device according to one of the preceding claims, characterized in that the coating device (12) has a station (16) on which the circulating transfer element (14) for applying the base layer material on the transfer layer (15) is moved past before the transfer element (15) reaches a transfer position (18) during its further circulation, at which the container (1) rolls on the transfer layer (15).
9. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, dadurch gekennzeichnet, dass das Transferelement (21) im Bereich seiner Transferschicht (22) mit einer als TrƤger- und Verteilerschicht wirkenden porƶsen, eine Vielzahl von Ɩffnungen, beispielsweise MikroƖffnungen oder Mikroporen aufweisenden Wand (24) ausgebildet ist, Ć¼ber die das Basisschichtmaterial unter Druck gleichmƤƟig verteilt an die Transferschicht (22) gefƶrdert wird, und zwar vorzugsweise in einer Achsrichtung radial zur Umlaufoder Drehachse (TR) des wenigstens einen Transferelementes (14, 21) oder dessen TrƤgers (13, 20). 9. Device according to one of the preceding claims, characterized in that the transfer element (21) in the region of its transfer layer (22) with acting as a carrier and distribution layer porous, a plurality of openings, for example, micro-openings or micropores having wall (24) is, via which the base layer material under pressure uniformly distributed to the transfer layer (22) is conveyed, preferably in an axial direction radially to the rotational axis (TR) of the at least one transfer element (14, 21) or its support (13, 20).
10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die porƶse Wand (24) den Innenraum einer Versorgungs- oder Pufferkammer (25) von der Transferschicht (22) oder der diese FlƤche bildenden DƤmpf- und Pufferschicht (23) trennt, und dass der Innenraum der Versorgungs- oder Pufferkammer (25) Ć¼ber wenigstens eine Leitung (26) mit einer Quelle verbunden ist, Ć¼ber die das Basisschichtmaterial der Versorgungs- oder Pufferkammer (25) unter Druck zugefĆ¼hrt wird, wobei die Versorgungs- oder Pufferkammer (25) vorzugsweise mit wenigstens einer weiteren Leitung (27) zum RĆ¼ckfĆ¼hren vom Basisschichtmaterial aus der Kammer an die Quelle verbunden ist. 10. The device according to claim 9, characterized in that the porous wall (24) separates the interior of a supply or buffer chamber (25) from the transfer layer (22) or the damping surface and buffer layer (23) forming said surface, and in that Interior of the supply or buffer chamber (25) via at least one line (26) is connected to a source via which the base layer material of the supply or buffer chamber (25) is supplied under pressure, wherein the supply or buffer chamber (25) preferably with at least one further conduit (27) is connected for returning the base layer material from the chamber to the source.
11. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, gekennzeichnet durch eine Drainageeinrichtung (32, 33) zum Auffangen von Ć¼berschĆ¼ssigem Basisschichtmaterial aus dem Ɯbergabebereich (18) zwischen BehƤlter (1) und Transferelement (21) und/oder aus der die Transferschicht (22) bildenden DƤmpf- und Pufferschicht (23) und/oder aus der als TrƤger- und Verteilerschicht wirkenden porƶsen Wand (24). 11. Device according to one of the preceding claims, characterized by a drainage device (32, 33) for collecting excess base layer material from the transfer region (18) between the container (1) and transfer element (21) and / or from the transfer layer (22) forming Damping and buffer layer (23) and / or acting as a carrier and distributor layer porous wall (24).
12. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, gekennzeichnet durch eine Heizeinrichtung (29), vorzugsweise eine elektrische Heizeinrichtung (29) zum Beheizen bzw. Temperieren des Basisschichtmaterials, wobei diese Heizeinrichtung (29) beispielsweise fĆ¼r ein Temperieren des Basisschichtmaterials in der Versorgungs- oder Pufferkammer (25) angeordnet ist. 12. Device according to one of the preceding claims, characterized by a heating device (29), preferably an electric heater (29) for heating or tempering of the base layer material, said heater (29), for example, for tempering the base layer material in the supply or buffer chamber (25) is arranged.
13. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, gekennzeichnet durch einen Sensor (37) an der Ɯbergabe- oder Auftragsposition (18) zur Messung der Distanz zwischen dem BehƤlter (1) und dem Transferelement (14, 21) oder dessen Transferschicht (15, 22) und/oder zur Messung und/oder Ɯberwachung des die Basisschicht bildenden Auftrags auf dem jeweiligen BehƤlter 1. 13. Device according to one of the preceding claims, characterized by a sensor (37) at the transfer or order position (18) for measuring the distance between the container (1) and the transfer element (14, 21) or its transfer layer (15, 22 ) and / or for measuring and / or monitoring the order forming the base layer on the respective container 1.
14. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, dadurch gekennzeichnet, dass an einem um eine vertikale Maschinenachse (MA) umlaufend antreibbaren Rotor (9) mehrere Behandlungspositionen (10) vorgesehen sind, und dass jede Behandlungsposition (10) eine Beschichtungseinrichtung (12, 12a, 12b) aufweist. 14. Device according to one of the preceding claims, characterized in that a plurality of treatment positions (10) are provided on a rotor (9) which is rotatable about a vertical machine axis (MA), and that each treatment position (10) has a coating device (12, 12a, 12b).
15. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, dadurch gekennzeichnet, dass der Rotor (9) mit einer Vielzahl weiterer Motoren (9) die BehƤlterbehandlungs- oder Transportstrecke (11) bildet, und dass die Behandlungspositionen (10) fĆ¼r das Aufbringen der Beschichtung (5) an wenigstens einem Rotor (9) und die Behandlungspositionen (10) fĆ¼r das Bedrucken und fĆ¼r ein Trocknen und/oder Vernetzen von Druckfarbe an wenigstens einem weiteren in BehƤltertransportrichtung (A) folgenden Rotor (9), vorzugsweise an mehreren weiteren in BehƤltertransportrichtung (A) folgenden Rotoren (9) ausgebildet sind. 15. Device according to one of the preceding claims, characterized in that the rotor (9) with a plurality of further motors (9) the BehƤlterbehandlungs- or transport path (11), and that the treatment positions (10) for the application of the coating (5 ) on at least one rotor (9) and the treatment positions (10) for printing and for drying and / or crosslinking printing ink on at least one further in the container transport direction (A) following rotor (9), preferably at several more in container transport direction (A ) following rotors (9) are formed.
16. Vorrichtung nach einem der vorhergehenden AnsprĆ¼che, dadurch gekennzeichnet, dass an oder fĆ¼r das Transferelement (14, 21) eine ein- oder mehrteilige, schwenk oder verfahrbare Verschlusskappe oder -kapsei vorgesehen ist. 16. Device according to one of the preceding claims, characterized in that on or for the transfer element (14, 21) is provided a one-piece or multi-part, pivoting or movable cap or capsei.
17. Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass die Verschlusskappe oder -kapsei in der Einsatzposition unter anderem gemeinsam mit der Transferschicht (14, 21) einen Ablaufraum oder -spalt bildet, welcher mit einem Reinigungs- und/oder Lƶsungsmittel, insbesondere im Kreislauf, durchstrƶmbar ist. 17. The device according to claim 16, characterized in that the closure cap or capsule in the insertion position, inter alia, together with the transfer layer (14, 21) forms a drainage space or gap, which with a cleaning and / or solvent, in particular in the circulation , can be flowed through.
EP12783111.3A 2011-11-23 2012-10-18 Device for applying images to cans Not-in-force EP2782762B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011119169A DE102011119169A1 (en) 2011-11-23 2011-11-23 Apparatus for applying equipment to containers
PCT/EP2012/004360 WO2013075774A1 (en) 2011-11-23 2012-10-18 Device for applying decorations to containers

Publications (2)

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EP2782762A1 true EP2782762A1 (en) 2014-10-01
EP2782762B1 EP2782762B1 (en) 2016-06-22

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EP12783111.3A Not-in-force EP2782762B1 (en) 2011-11-23 2012-10-18 Device for applying images to cans

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US (1) US9415607B2 (en)
EP (1) EP2782762B1 (en)
JP (1) JP6411892B2 (en)
DE (1) DE102011119169A1 (en)
WO (1) WO2013075774A1 (en)

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Also Published As

Publication number Publication date
DE102011119169A1 (en) 2013-05-23
US9415607B2 (en) 2016-08-16
JP2015509822A (en) 2015-04-02
US20140313247A1 (en) 2014-10-23
WO2013075774A1 (en) 2013-05-30
JP6411892B2 (en) 2018-10-24
EP2782762B1 (en) 2016-06-22

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